BAK 4S 14.8V 25000mAh (25Ah) 4S5P 3C Lithium-Ion Rechargeable Battery Pack

Description

BAK 4S 14.8V 25000mAh (25Ah) 4S5P 3C Lithium-Ion Rechargeable Battery Pack

The BAK 4S 14.8V 25000mAh (25Ah) 4S5P 3C Lithium-Ion Rechargeable Battery Pack is a high-capacity NMC Lithium-Ion battery pack designed for applications requiring reliable 14.8V power and extended operating time.

Built using BAK 3.7V 5000mAh lithium-ion cells, this battery pack uses a 4S5P configuration, providing 14.8V nominal voltage, 25Ah capacity, and approximately 370Wh energy.

With a 3C configuration, the theoretical discharge capability is 75A. Actual continuous discharge capability depends on the selected cells, BMS, wiring, connectors, interconnections and thermal management.

Key Features

• Brand: BAK
• Battery Chemistry: NMC Lithium-Ion
• Configuration: 4S5P
• Nominal Voltage: 14.8V
• Maximum Charging Voltage: 16.8V
• Capacity: 25000mAh (25Ah)
• Cell Capacity: 5000mAh
• Total Cells: 20
• Discharge Rating: 3C
• Theoretical 3C Current: 75A
• Rechargeable Lithium-Ion battery
• High-capacity configuration for longer runtime
• Suitable for portable and industrial applications
• Custom BMS, wiring and connectors available

4S5P Battery Configuration

The pack contains 20 cells arranged as:

• 4 cells in series (4S) → 14.8V nominal
• 5 cells in parallel (5P) → 25Ah capacity
• Total cells: 4 × 5 = 20 cells
• Nominal energy: 14.8V × 25Ah = 370Wh
• Maximum charging voltage: 4.2V × 4 = 16.8V

3C Lithium-Ion Configuration

The theoretical 3C discharge current is:

25Ah × 3C = 75A

The actual usable continuous current should be determined by the complete battery design, including the BMS rating, cell specifications, wiring, connectors, interconnections and thermal conditions.

BMS Protection

A suitable BMS can provide protection against:

• Overcharge
• Over-discharge
• Over-current
• Short circuit
• Cell imbalance
• Excessive temperature
• Abnormal charging and discharging conditions

The BMS current rating should be selected according to the actual load requirements.

 Applications

The BAK 4S5P 14.8V 25Ah battery pack can be used for:

• Portable Power Equipment
• Robotics
• RC Projects
• Electric Mobility Projects
• Small EV Applications
• Backup Power Systems
• DC Power Equipment
• Industrial Electronics
• Custom Battery Projects
• OEM Battery Applications

Advantages

• 25Ah high-capacity battery
• 14.8V nominal voltage
• Approximately 370Wh energy
• 4S5P cell configuration
• 3C discharge configuration
• Rechargeable NMC Lithium-Ion technology
• Extended operating time
• Custom BMS options available
• Custom connectors and wiring available
• Suitable for OEM and bulk requirements

Package Includes

• 1 × BAK 4S5P 14.8V 25000mAh Lithium-Ion Battery Pack
• BMS – according to selected configuration
• Connector and wiring – according to selected configuration